5 Pin Configuration and Functions

A0

A1

A2

A3

A4

A5

GND

OE

B0

B1

B2

B3

B7

B4

PAD

DIR

V

CC

2

3

4

5

6

7

10

19

18

17

16

15

14

11

1

20

A6

A7

B5

B6

9

13

12

8

RKS Package

20-Pin VQFN

Top View

Pin Functions

PIN

I/O(1)

DESCRIPTION

VQFN NO.

NAME

1

DIR

I

Direction control input (L = B → A, H = A → B)

2

A1

I/O

Channel 1 output/input A

3

A2

I/O

Channel 2 output/input A

4

A3

I/O

Channel 3 output/input A

5

A4

I/O

Channel 4 output/input A

6

A5

I/O

Channel 5 output/input A

7

A6

I/O

Channel 6 output/input A

8

A7

I/O

Channel 7 output/input A

9

A8

I/O

Channel 8 output/input A

10

GND

—

Ground

11

B8

I/O

Channel 8 input/output B

12

B7

I/O

Channel 7 input/output B

13

B6

I/O

Channel 6 input/output B

14

B5

I/O

Channel 5 input/output B

15

B4

I/O

Channel 4 input/output B

16

B3

I/O

Channel 3 input/output B

17

B2

I/O

Channel 2 input/output B

18

B1

I/O

Channel 1 input/output B

19

OE

I

Output enable, active low

20

—

Positive supply

Thermal Pad

—

The thermal pad can be connect to GND or left floating. Do not connect to any other signal

or supply.

(1)

Signal Types: I = Input, O = Output, I/O = Input or Output.

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SN74HCS245

SCLS879 – JANUARY 2022

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